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Tunnel bypass Flüelen, Switzerland

Project data

Location: Flüelen, Switzerland

Oval-shaped tunnel cross-section with a height of 12.80 m

  • total length: 2.6 km
  • construction period: 1999 - 2005


  • section-wise concreting of the complete cross-section in one pour
  • short construction time


Arge Tunnel Umfahrung Flüelen (ARGE TUF) Murer AG, Erstfeld -
Prader AG Tunnelbau, Zürich; Zschokke Locher AG, Zürich; Rothpletz Lienhard + Cie AG, Aarau; CSC Impresa Costruzioni SA, Lugano

Customer's benefit

  • four tunnel sections finished in only 9 days
Tunnel bypass Flüelen: Felix Bissig und Hansruedi Walker, Foremen
Felix Bissig | Hansruedi Walker

From PERI, we got the most efficient solution. Despite the large dimensions, we were able to concrete in one pour!

PERI solution

  • tunnel formwork carriage for four sections with section lengths of 5.50 m
  • since there were only four cycles, decision to go without integrated hydraulics

PERI systems in use